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Diffstat (limited to 'perl/ZBar/Symbol.pod')
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diff --git a/perl/ZBar/Symbol.pod b/perl/ZBar/Symbol.pod new file mode 100644 index 0000000..6a21b1e --- /dev/null +++ b/perl/ZBar/Symbol.pod @@ -0,0 +1,179 @@ +#------------------------------------------------------------------------ +# Copyright 2008-2010 (c) Jeff Brown <spadix@users.sourceforge.net> +# +# This file is part of the ZBar Bar Code Reader. +# +# The ZBar Bar Code Reader is free software; you can redistribute it +# and/or modify it under the terms of the GNU Lesser Public License as +# published by the Free Software Foundation; either version 2.1 of +# the License, or (at your option) any later version. +# +# The ZBar Bar Code Reader is distributed in the hope that it will be +# useful, but WITHOUT ANY WARRANTY; without even the implied warranty +# of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU Lesser Public License for more details. +# +# You should have received a copy of the GNU Lesser Public License +# along with the ZBar Bar Code Reader; if not, write to the Free +# Software Foundation, Inc., 51 Franklin St, Fifth Floor, +# Boston, MA 02110-1301 USA +# +# http://sourceforge.net/projects/zbar +#------------------------------------------------------------------------ + +=pod + +=head1 NAME + +Barcode::ZBar::Symbol - bar code scan result object + +=head1 SYNOPSIS + + my @symbols = $image->get_symbols(); + foreach my $sym (@symbols) { + print("decoded: " . $sym->get_type() . + ":" . $sym->get_data(). + "(" . $sym->get_count() . ")"); + } + +=head1 DESCRIPTION + +Barcode::ZBar::Symbol objects are constant results returned for each +bar code scanned from images or video. This object wraps the raw +symbol data with additional information about the decode (symbology, +confidence, location, etc) + +=head1 REFERENCE + +=head2 Methods + +=over 4 + +=item get_type() + +The type of bar code "symbology" from which the data was decoded. + +=item get_data() + +The decoded data string. Note that some symbologies can encode binary +data. + +=item get_quality() + +Confidence metric. An unscaled integer value that indicates something +(intentionally unspecified) about the reliability of this result +relative to another. Larger values are better than smaller values, +where "large" and "small" are application dependent. Expect this +definition to become more specific as the metric is enhanced. + +=item get_count() + +Current cache count of the symbol. This integer value provides +inter-scan reliability and redundancy information if enabled at the +Barcode::ZBar::ImageScanner. + +=item get_orientation() + +General orientation of decoded symbol. This returns one of the +Barcode::ZBar::Orient constants, which provide a coarse, axis-aligned +indication of symbol orientation. + +=item get_components() + +Components of a composite result. This yields an array of physical +component symbols that were combined to form a composite result. + +=item get_configs() + +Retrieve symbology boolean config settings. Returns a bitmask +indicating which configs were set for the detected +symbology during decoding. + +=item get_modifiers() + +Retrieve symbology modifier flag settings. Returns a bitmask +indicating which characteristics were detected during decoding. + +=item get_loc() + +Retrieve an array of symbol location points (x,y) + +=over 2 + +=item * + +A negative value indicates that this result is still uncertain + +=item * + +A zero value indicates the first occurrence of this result with high +confidence + +=item * + +A positive value indicates a duplicate scan + +=back + +=back + +=head2 Constants + +Bar code type "symbology" constants: + +=over 4 + +=item NONE + +=item PARTIAL + +=item EAN13 + +=item EAN8 + +=item UPCA + +=item UPCE + +=item ISBN10 + +=item ISBN13 + +=item I25 + +=item CODABAR + +=item CODE39 + +=item CODE93 + +=item CODE128 + +=item QRCODE + +=item PDF417 + +=back + +=head1 SEE ALSO + +Barcode::ZBar, Barcode::ZBar::Image + +zbarimg(1), zbarcam(1) + +http://zbar.sf.net + +=head1 AUTHOR + +Jeff Brown, E<lt>spadix@users.sourceforge.netE<gt> + +=head1 COPYRIGHT AND LICENSE + +Copyright 2008-2010 (c) Jeff Brown E<lt>spadix@users.sourceforge.netE<gt> + +The ZBar Bar Code Reader is free software; you can redistribute it +and/or modify it under the terms of the GNU Lesser Public License as +published by the Free Software Foundation; either version 2.1 of +the License, or (at your option) any later version. + +=cut |